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A-TECH free pcb surface finish free delivery at discount

A-TECH free pcb surface finish free delivery at discount

Thickness
1-40um
Shelf Life
12 Months
Solderability
Good
RoHS Compliant
Yes
Additional Cost
No
Supply Capacity
20000 ㎡/Month
Certifications
UL, ISO9001, TS16949
Payment Terms
T/T, Paypal, WU etc.
Shipment Terms
EXW, FOB, DDU etc.
Test Way
100% E-Test
Standard
IPC CLASS 2 / CLASS 3
Price
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Quantity Needed:
Pieces
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HAL(Lead Free), the full name is Hot Air leveling with Lead Free. Compared with HASL, the main difference for HAL(Lead Free) is the element of material which do not contain Lead(Pb), so it’s RoHS Compliant and it’s much more popular and widely used in PCB manufacturing.

HAL(Lead Free) requires higher run temperatures for lead free solder and longer contact time, the production cost for HAL(Lead Free) is slightly higher than HASL(Tin/Lead).

The manufacturing process of HAL(Lead Free) is similar to HASL(Tin/Lead), the circuit boards will be submersed in molten solder(Lead Free). This solder will cover all the exposed copper surfaces. Upon retraction from the solder, high pressure hot air is blown over the surface through air knives, this levels the solder deposit and removes the excess solder from the surface of printed circuit boards.

The typical thickness of HAL(Lead Free) is 1-40um and the shelf life is 12 months.



The advantages of HAL(Lead Free) surface finish

● Good solderability / wettability
● RoHS Compliant
● Good reflow properties
● Large processing window is allowed
● Multiple thermal excursions
● Can be widely used



The disadvantages of HAL(Lead Free) surface finish

● Uneven surface
● Not suitable for PCBs with fine pitch
● Thermal shock
● Solder bridge
● Plugged or Reduced plated through holes



A-TECH have HAL(Lead Free) surface finish in house, It’s basically the highest proportion of finish used for circuit boards without fine pitch or high density layout. We don’t have any additional cost for HAL(Lead Free) surface finish.




Our pcb surface finish is compact in outline for convenient transportation. The machine can be equipped with smart nesting software
immersion tin pcb finish makes pcb surface finish easy to operate for common users. The product can withstand high working temperature, remaining the original shape
pcb surface finish produced by A-TECH CIRCUITS Co., Ltd. are mainly composed of immersion tin pcb finish materials. The product will not damage the crimp ratio and smoothness of the fibre
A-TECH CIRCUITS Co., Ltd. thinks highly of material, and has a professional team for purchasing material of pcb surface finish. The product will not damage the crimp ratio and smoothness of the fibre
pcb surface finish ensures immersion tin pcb finish to achieve higher durability. There is instruction information in both Chinese and English
This product has a a good proportion. Multiple prototypes are made for deciding a well balanced and well-fitted design appropriate for a wide range of body proportions. It is notable for processing speed and fabrics utilization rate
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